Sarah, The short answer is that, yes, you can substitute butter for shortening in cookies. It will, however, change the texture and appearance of the end product. Because shortening is 100% fat and butter is roughly 85% fat and 15% water, cookies with butter in them tend to spread more during baking.
Usage: Yang is a popular first name. It is more often used as a boy (male) name. People having the name Yang are in general originating from China, France, South Korea, United States of America.
Yang is a blue rabbit and one of the protagonists of the Jetix series Yin Yang Yo! He and his younger twin sister Yin are trained by Master Yo to master Woo Foo and to assure to the world that it is not foolish. Yang is training to master the martial style of Woo Foo, and he currently ranks second level. Yang's voice is provided by Scott McCord.